Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.2 on date 07-04-2009 and time 12:34:26 (Italy) in region 4 km SE L'Aquila (AQ)

A magnitude ML 2.2 earthquake occured in region: 4 km SE L'Aquila (AQ), on

  • 07-04-2009 10:34:26 (UTC)
  • 07-04-2009 12:34:26 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.3170, 13.4230 at 10 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
L'Aquila AQ 4 69753 69753
Ocre AQ 6 1167 70920
Fossa AQ 6 721 71641
Lucoli AQ 8 1011 72652
Sant'Eusanio Forconese AQ 9 394 73046
Poggio Picenze AQ 10 1136 74182
Tornimparte AQ 10 3187 77369
Rocca di Cambio AQ 10 533 77902
Villa Sant'Angelo AQ 11 424 78326
San Demetrio ne' Vestini AQ 12 1854 80180
Barisciano AQ 14 1828 82008
Rocca di Mezzo AQ 14 1526 83534
Fagnano Alto AQ 14 418 83952
Scoppito AQ 15 3727 87679
Prata d'Ansidonia AQ 16 496 88175
Pizzoli AQ 17 4326 92501
Fontecchio AQ 18 369 92870
Santo Stefano di Sessanio AQ 19 111 92981
Barete AQ 19 737 93718
San Pio delle Camere AQ 19 661 94379

Municipalities with at least 50000 inhabitants

An earthquake occurred to
4 Km SE of L'Aquila (69753 inhabitants)
45 Km SW of Teramo (54892 inhabitants)
61 Km W of Chieti (51815 inhabitants)
64 Km W of Montesilvano (53738 inhabitants)
65 Km NE of Tivoli (56533 inhabitants)
67 Km W of Pescara (121014 inhabitants)
67 Km NE of Guidonia Montecelio (88673 inhabitants)
69 Km E of Terni (111501 inhabitants)
88 Km NE of Velletri (53303 inhabitants)
91 Km NE of Roma (2864731 inhabitants)
92 Km SE of Foligno (57155 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000 		ML 2.2 2009-04-07
10:34:26		 42.317 13.423 10 2014-10-21
12:27:13		 Bollettino Sismico Italiano INGV 766809
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-04-07 10:34:26 ± 0.09
Latitude 42.3170 ± 0.0054
Longitude 13.4230 ± 0.0085
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 766809

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 667
Semi-minor axis of confidence ellipse (meter) 530
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 55
Circular confidence region, given by single value of horizontal uncertainty (meter) 922.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 65
Number of associated phases, regardless of their use for origin computation 75
Number of defining phases 29
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.47
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.91731
Number of stations at which the event was observed 66
Number of stations from which data was used for origin computation 22
Magnitude information

ML:2.2

Field Value
Value 2.2
Uncertainty 0.4
Num. used stations
Type of magnitude ML
Reference to an origin 766809
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:30:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
CH.MUGIO.HHE. 2009-04-07T10:35:07.76 10.0 undecidable manual Pn 0 0 0
MN.TUE.HHE. 2009-04-07T10:35:00.98 10.0 undecidable manual Pn 0 0 0
IV.MDI.HHE. 2009-04-07T10:34:59.90 10.0 undecidable manual Pn 0 0 0
IV.SFI.EHN. 2009-04-07T10:34:58.15 10.0 undecidable manual Pn 0 0 0
IV.RDP.BHE. 2009-04-07T10:34:57.47 10.0 undecidable manual Pn 0 0 0
CH.DAVOX.HHZ. 2009-04-07T10:34:55.54 10.0 undecidable manual Pn 0 0 0
IV.FSSB.SHZ. 2009-04-07T10:34:55.88 10.0 undecidable manual Pn 0 0 0
IV.RMP.HHE. 2009-04-07T10:34:54.20 10.0 undecidable manual Pn 0 0 0
IV.PIEI.HHN. 2009-04-07T10:34:54.41 10.0 undecidable manual Pn 0 0 0
IV.ARVD.HHE. 2009-04-07T10:34:53.18 10.0 undecidable manual Pn 0 0 0
IV.PTRJ.HHZ. 2009-04-07T10:34:53.40 10.0 undecidable manual Pn 0 0 0
IV.SGG.HHE. 2009-04-07T10:34:52.36 10.0 undecidable manual Pn 0 0 0
IV.CRAC.EHN. 2009-04-07T10:34:52.79 10.0 undecidable manual Pn 0 0 0
IV.CERA.HHZ. 2009-04-07T10:34:52.16 10.0 undecidable manual Pn 0 0 0
IV.AOI.HHN. 2009-04-07T10:34:52.63 10.0 undecidable manual Pn 0 0 0
IV.MGAB.HHZ. 2009-04-07T10:34:51.59 10.0 undecidable manual Pn 0 0 0
IV.CAFR.HHE. 2009-04-07T10:34:51.45 10.0 undecidable manual Pn 0 0 0
CH.FUORN.HHZ. 2009-04-07T10:34:50.61 10.0 undecidable manual Pg 0 0 0
IV.SALO.HHZ. 2009-04-07T10:34:50.84 10.0 undecidable manual Pn 0 0 0
IV.MURB.HHN. 2009-04-07T10:34:50.70 10.0 undecidable manual Pn 0 0 0
IV.VAGA.HHZ. 2009-04-07T10:34:50.79 10.0 undecidable manual Pn 0 0 0
IV.TOLF.HHZ. 2009-04-07T10:34:49.06 10.0 undecidable manual Pg 0 0 0
IV.BRMO.HHZ. 2009-04-07T10:34:48.84 10.0 undecidable manual Pg 0 0 0
SI.MOSI.BHZ. 2009-04-07T10:34:47.00 10.0 undecidable manual Pg 0 0 0
IV.CING.HHN. 2009-04-07T10:34:47.81 10.0 undecidable manual Pg 0 0 0
IV.SNTG.SHZ. 2009-04-07T10:34:46.70 10.0 undecidable manual Pg 0 0 0
IV.TRTR.HHE. 2009-04-07T10:34:46.70 10.0 undecidable manual Sg 0 0 0
IV.RNI2.HHZ. 2009-04-07T10:34:43.26 0.3 undecidable manual Pg 138 90.7425 1.213 43
IV.ASSB.HHZ. 2009-04-07T10:34:43.74 0.6 undecidable manual Pg 323 101.8203 -0.017 43
IV.INTR.HHZ. 2009-04-07T10:34:43.20 0.6 undecidable manual Sg 130 52.1034 0.11 46
IV.MIDA.HHZ. 2009-04-07T10:34:43.30 0.6 undecidable manual Pg 137 101.4207 -0.395 40
IV.TRTR.HHE. 2009-04-07T10:34:42.47 10.0 undecidable manual Pg 0 0 0
IV.FDMO.HHE. 2009-04-07T10:34:41.51 0.3 undecidable manual Pg 341 84.4488 0.441 61
IV.CESI.HHN. 2009-04-07T10:34:41.95 0.3 undecidable manual Pg 331 87.246 0.437 60
IV.GIUL.HHE. 2009-04-07T10:34:41.87 0.6 undecidable manual Pg 189 85.248 0.672 37
OE.WTTA.HHZ. 2009-04-07T10:34:40.08 10.0 undecidable manual Pg 0 0 0
IV.TERO.HHZ. 2009-04-07T10:34:39.43 0.3 undecidable manual Sg 23 37.0296 0.351 68
IV.SDI.SHZ. 2009-04-07T10:34:39.18 0.6 undecidable manual Pg 154 74.4699 -0.358 42
IV.POFI.HHN. 2009-04-07T10:34:39.11 0.6 undecidable manual Pg 160 70.5738 0.171 44
IV.OFFI.HHZ. 2009-04-07T10:34:39.74 0.3 undecidable manual Pg 17 71.8725 0.604 59
IV.APPI.EHZ. 2009-04-07T10:34:38.79 0.3 undecidable manual Pg 0 0 0
SI.ROSI.BHZ. 2009-04-07T10:34:38.45 10.0 undecidable manual Pg 0 0 0
IV.VCEL.EHZ. 2009-04-07T10:34:37.67 0.6 undecidable manual Sg 76 35.2425 -0.937 37
IV.NRCA.SHZ. 2009-04-07T10:34:37.77 0.3 undecidable manual Pg 336 62.6928 0.055 69
SI.ABSI.BHE. 2009-04-07T10:34:37.70 10.0 undecidable manual Pg 0 0 0
SI.KOSI.BHZ. 2009-04-07T10:34:36.81 10.0 undecidable manual Pg 0 0 0
IV.VVLD.HHZ. 2009-04-07T10:34:36.00 0.6 undecidable manual Pg 162 52.2033 -0.109 46
IV.GUAR.HHZ. 2009-04-07T10:34:36.68 0.3 undecidable manual Pg 189 58.5969 -0.415 64
IV.CERT.HHN. 2009-04-07T10:34:36.22 0.1 undecidable manual Pg 222 54.6009 -0.255 89
IV.INTR.HHZ. 2009-04-07T10:34:35.86 0.1 undecidable manual Pg 130 52.1034 -0.224 90
IV.CAMP.HHE. 2009-04-07T10:34:35.07 0.6 undecidable manual Sg 357 24.3534 -0.585 43
.FIAM.HHZ. 2009-04-07T10:34:35.91 0.3 undecidable manual Sg 258 25.6521 -0.137 72
IV.MTCE.HHZ. 2009-04-07T10:34:34.28 10.0 undecidable manual Pg 0 0 0
IV.CTI.EHE. 2009-04-07T10:34:34.22 10.0 undecidable manual Pg 0 0 0
NI.POLC.HHZ. 2009-04-07T10:34:33.88 10.0 undecidable manual Sg 0 0 0
IV.VCEL.EHZ. 2009-04-07T10:34:33.55 0.6 undecidable manual Pg 76 35.2425 0.054 48
IV.TERO.HHZ. 2009-04-07T10:34:33.23 0.1 undecidable manual Pg 23 37.0296 -0.537 86
NI.CGRP.HHZ. 2009-04-07T10:34:33.27 10.0 undecidable manual Pg 0 0 0
MN.TRI.HHN. 2009-04-07T10:34:32.61 10.0 undecidable manual Pg 0 0 0
IV.FAGN.HHN. 2009-04-07T10:34:32.76 0.3 undecidable manual Sg 113 14.3745 0.171 73
.FIAM.HHZ. 2009-04-07T10:34:32.02 0.1 undecidable manual Pg 258 25.6521 0.002 99
IV.CAMP.HHE. 2009-04-07T10:34:31.61 0.1 undecidable manual Pg 357 24.3534 -0.181 96
SI.RISI.BHZ. 2009-04-07T10:34:31.36 10.0 undecidable manual Pg 0 0 0
MN.AQU.HHZ. 2009-04-07T10:34:30.26 0.3 undecidable manual Sg 337 4.4955 -0.08 76
IV.FAGN.HHN. 2009-04-07T10:34:30.07 0.1 undecidable manual Pg 113 14.3745 0.049 100
MN.AQU.HHZ. 2009-04-07T10:34:28.93 0.1 undecidable manual Pg 337 4.4955 0.207 98
NI.AGOR.HHZ. 2009-04-07T10:34:28.59 10.0 undecidable manual Pg 0 0 0
I1.MSCL.BHE. 2009-04-07T10:34:27.78 10.0 undecidable manual Pg 0 0 0
NI.POLC.HHZ. 2009-04-07T10:34:27.52 10.0 undecidable manual Pg 0 0 0
NI.ACOM.HHZ. 2009-04-07T10:34:24.27 10.0 undecidable manual Pg 0 0 0
IV.FVI.HHZ. 2009-04-07T10:34:21.03 10.0 undecidable manual Pg 0 0 0
IV.PTCC.HHZ. 2009-04-07T10:34:21.69 10.0 undecidable manual Pg 0 0 0
NI.VINO.HHZ. 2009-04-07T10:34:21.29 10.0 undecidable manual Pg 0 0 0
NI.PALA.HHZ. 2009-04-07T10:34:19.67 0.1 undecidable manual Pg 0 0 0
IV.SBPO.HHZ. 2009-04-07T10:34:05.94 10.0 undecidable manual Pg 0 0 0
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download